繰り返し曲げせん断を受けるRC梁の変形能力予測法

概要

論文の詳細を見る
The ductility of reinforced concrete beams in earthquake resistant frames is strongly affected by the magnitude of shear force. This is due to the degradation of shear capacity of plastic hinge regions in post yield range. The purpose of this study is to analyze the shear failure of beam plastic hinge in relation to the ductility ratio. Basic concept of the analysis is that the ductility of reinforced concrete beams decreases due to the degradation of aggregate interlocking and effective strength of concrete which comes from the increase of axial extension of beam plastic hinge region after flexural yielding. In the analysis, the truss mechanism was adopted where the condition of shear failure was given by the crushing of diagonally compressed concrete. The predicted ductility was compared with available experimental data and the better result than AIJ-A ductile design method was obtained.
社団法人日本建築学会の論文
1999-06-30